mat-icon.avator{
    overflow: hidden;
    width: 55px;
    height: 55px;
    border-radius:50%;
    margin:12px;
}
.scroll-container{
    overflow-y: scroll;
    height:200px;
}
.images-container{
    position: relative;
    display:inline-block;
}
.images-container img{
    display: block;
}
.images-container .after{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height:100%;
    display:none;
    color: #fff;
}
.images-container:hover .after{
    display: block;
    background: rgba(0,0,0,0.6);
}
.images-container .after .zoom{
    color: #ddd;
    font-size: 48px;
    position: absolute;
    top:50%;
    left: 50%;
    margin: -30px 0 0 -19px;
    height: 50px;
    width: 45px;
    cursor: pointer;
    text-align: center;
    line-height: 50px;
}
.images-containerr .after .zoom:hover{

}